Europe Size 15 to US: XL
Cross-market adult bracelet and cuff apparel conversion mapping 15 specifications into XL.

Analyzing Size Equivalence Across Markets
Europe Size 15: Corresponds to a wrist circumference baseline of 14 (5.5 ), bracelet length of 15 (5.9 ), and fit classification Snug / Compact.
US: XL: Corresponds to a wrist circumference baseline of 19 (7.5 ), bracelet length of 21 (8.3 ), and fit classification Relaxed / Expanded.